dependent.js - mozsearch

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function testSubstrLatin1() {

    var s1 = "abcdefghijklmnopqrstuvwxyz12345678900000a";

    // Static strings.

    assertEq(s1.substr(s1.length - 1), "a");

    assertEq(s1.substr(s1.length - 2), "0a");

    assertEq(s1.substr(26, 3), "123");

    // (Fat) inline strings.

    var s2 = s1.substr(3, 5);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "defgh");

    s2 = s1.substr(0, 20);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "abcdefghijklmnopqrst");

    // Dependent string.

    s2 = s1.substr(1, s1.length - 2);

    assertEq(isLatin1(s2), true);

    assertEq(s2.length, 39);

    assertEq(s2, "bcdefghijklmnopqrstuvwxyz12345678900000");

    s2 = s2.substr(2).substr(1);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "efghijklmnopqrstuvwxyz12345678900000");

testSubstrLatin1();

function testSubstrTwoByte() {

    // Two byte string.

    var s1 = "abcdefghijklmnopqrstuvwxyz12345678900000a\u1480";

    assertEq(isLatin1(s1), false);

    // Static string.

    var s2 = s1.substr(28, 1);

    assertEq(s2, "3");

    // Inline string.

    s2 = s1.substr(3, 5);

    assertEq(s2, "defgh");

    // Dependent string.

    s2 = s1.substr(2);

    assertEq(isLatin1(s2), false);

    assertEq(s2, "cdefghijklmnopqrstuvwxyz12345678900000a\u1480");

    s2 = s2.substr(2).substr(1);

    assertEq(isLatin1(s2), false);

    assertEq(s2, "fghijklmnopqrstuvwxyz12345678900000a\u1480");

testSubstrTwoByte();

function testSubstring() {

    var s1 = "abcdefghijklmnopqrstuvwxyz123456789000ab";

    var s2 = s1.substring(1, 8);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "bcdefgh");

    s2 = s1.substring(0, s1.length - 1);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "abcdefghijklmnopqrstuvwxyz123456789000a");

testSubstring();

function testSlice() {

    var s1 = "abcdefghijklmnopqrstuvwxyz123456789000ABC";

    var s2 = s1.slice(1, 8);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "bcdefgh");

    s2 = s1.slice(0, -2);

    assertEq(isLatin1(s2), true);

    assertEq(s2, "abcdefghijklmnopqrstuvwxyz123456789000A");

testSlice();

function testUndepend() {

    // Latin1

    var s = "abcdefg".repeat(7);

    s.indexOf("def"); // flatten

    assertEq(isLatin1(s), true);

    var dep = s.substr(7);

    var res = dep.replace(/abcdef/g, ""); // StrReplaceRegexpRemove undepends.

    assertEq(res, "gggggg");

    // TwoByte

    var s = "abcdefg\u1200".repeat(6);

    s.indexOf("def"); // flatten

    var dep = s.substr(8);

    var res = dep.replace(/abcdefg/g, ""); // StrReplaceRegexpRemove undepends.

    assertEq(res, "\u1200\u1200\u1200\u1200\u1200");

testUndepend();